Abstract

This paper presents organic solar cells (OSCs) containing a one-dimensional (1D) periodic array of plasmonic butterfly-wing-shaped nanostructures, where silver butterfly-wing-shaped nanostructures are present in the back region of the active medium poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl]] with [6,6]-phenyl-C71-butric acid methyl ester. Finite-difference time-domain (FDTD) modeling was employed to simulate the interaction of light with the plasmonic nanostructures, and it was demonstrated that these plasmonic nanostructures lead to a broadband enhancement of light absorption in the active medium. These plasmonic nanostructures lead to enhanced scattering and trapping of the incident optical radiation at multiple wavelengths due to surface plasmon excitation at these wavelengths. This enhanced scattering leads to an increased path length of light, as well as an enhanced intensity of the overall electric field in the active layer of the OSC, which further leads to an increase in absorption. The plasmonic butterfly-wing-shaped nanostructures-containing solar cells were also simulated with indium tin oxide (ITO) nanogratings (NGs) placed on the top surface of the solar cells. It was seen that the presence of the ITO NGs leads to a further enhancement in absorption. In these OSCs containing both the plasmonic butterfly-wing-shaped nanostructures and the ITO NGs, the highest values of enhancements in the absorption and cell efficiency were calculated to be 20% and 25%, respectively.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption increased in all polarizations

Mustafa Akin Sefunc, Ali Kemal Okyay, and Hilmi Volkan Demir
Opt. Express 19(15) 14200-14209 (2011)

Optical design of organic solar cell with hybrid plasmonic system

Wei E. I. Sha, Wallace C. H. Choy, Yongpin P. Chen, and Weng Cho Chew
Opt. Express 19(17) 15908-15918 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (8)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription